Display screen or portion thereof with icon



FIG. 1 is a front view of a display screen or portion thereof with icon showing our new design according to a first embodiment; and,

FIG. 2 is a front view of a display screen or portion thereof with icon showing our new design according to a second embodiment.

The broken line showing of a display screen or portion thereof with icon is included for the purpose of illustrating portions of the article that forms no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with icon, as shown and described. 